Portable industrial mixers



FIG. 1 is a front and right side perspective view of a portable industrial mixers showing our new design;

FIGS. 2, 3, 4 and 5 are respectively front elevational, right side, left side, and rear elevational views thereof;

FIGS. 6 and 7 are respectively top and bottom plan views thereof;

FIG. 8 is a front and right side perspective view of a second embodiment thereof;

FIG. 9 is a front and right side perspective view of a third embodiment thereof; and,

FIG. 10 is a front and right side perspective view of a fourth embodiment thereof. 

The ornamental design for a portable industrial mixers, as shown and described. 